Must be legit. It says "official" right there.

Nah it’s the guys themselves, they’re posting all the SBDs for the North American tour as they go by the looks and they’ve also said they’ll be eventually putting up the stem tracks so people can make their own mixes if they want. Pretty incredible stuff but it’s totally something you’d expect king gizz to do at this point.

You can probably find the live streams on YouTube and rip them with a browser extension if you’re looking for the shows from the current tour. After going to the Chicago show, I will definitely be buying the “official” bootleg when it’s released in a physical format.